201222100211200 has 60 divisors (see below), whose sum is σ = 498543473781540. Its totient is φ = 80488840079360.

The previous prime is 201222100211159. The next prime is 201222100211219. The reversal of 201222100211200 is 2112001222102.

It is a happy number.

It is a super-2 number, since 2×201222100211200² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7860225490 + ... + 7860251089.

It is an arithmetic number, because the mean of its divisors is an integer number (8309057896359).

Almost surely, 2^{201222100211200} is an apocalyptic number.

201222100211200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201222100211200 is an abundant number, since it is smaller than the sum of its proper divisors (297321373570340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201222100211200 is an equidigital number, since it uses as much as digits as its factorization.

201222100211200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15720476607 (or 15720476586 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 201222100211200 its reverse (2112001222102), we get a palindrome (203334101433302).

The spelling of 201222100211200 in words is "two hundred one trillion, two hundred twenty-two billion, one hundred million, two hundred eleven thousand, two hundred".